class CreateLibraryDepartmentsRestrictions < ActiveRecord::Migration
  def self.up
#	execute "ALTER TABLE library_departments ADD CONSTRAINT fk_libraries FOREIGN KEY (library_id) REFERENCES libraries(id)"
#	execute "ALTER TABLE library_departments ADD CONSTRAINT fk_cities FOREIGN KEY (city_id) REFERENCES cities(id)"
#	execute "ALTER TABLE library_departments ADD CONSTRAINT fk_currencies FOREIGN KEY (currency_id) REFERENCES currencies(id)"
  end

  def self.down
#	execute "ALTER TABLE library_departments DROP CONSTRAINT fk_libraries"
#	execute "ALTER TABLE library_departments DROP CONSTRAINT fk_cities"
#	execute "ALTER TABLE library_departments DROP CONSTRAINT fk_currencies"
  end
end
